Improved gar-truck



Car Truck. l No. 77,858. Patented May12, 1868.

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:MPRovED cARrRUQK# j i i v Specification forming part of: Letters PatentN 77,858, dated May 12,1868; antedated May 9, 1868.

To all whom it may concern Be it known that I, C. F. ALLEN, loi' Pawlaw, in the county of Van Buren and State of Michigan, have invented anew and useful Improvement in Car-Trucks arranged'for' six wheels; and Ido'hereby declare that the following is a full, clear, "and exactdescription of the same, reference being had to theaunexed drawings,making part of this specification, in which Figure 1 is a perspectiveview. Fig.' 2 is a central, Vertical, and longitudinal section. Fig. 3is a side elevation, and Fig. 4 is a plan.

The same letters are employed in all the gures inthe indication oi partswhich are identical, o My improvements relate to the construction of asix-wheel truck for railroad-coaches. I embody in their constructionsome ot' the i'eaturesof' my improvements in trucks, as set forth in thespecifications accompanying Letters Patent granted to me on the 24th-dayot' April, A. D. 1866, and on the 18th day of June A. D. 1867,130 whichl make reference for the more full explanation of such parts as may beshown in the drawings hereto au- Y n'exed, and also in the patentscited, and not herein fully explained.

My improvements consist in constructing six-wheeled trucks, witha rigidframe 1naintaining the wheels in the same line at all times, but atthesame time enabling them to run over curves in the track by attachingflanges only to the rims ot' the outer wheels, the middle ones beingflat on the periphery; also, in the mode of supporting the ear over themiddle axle, so that the weight shall be equally distributed upon thethree axles, and in balancing the ear over the center otl the middleaxle, giving it, at the same time, lat# eral support, when needed,outside bt' thc middle wheels.

The lollowing description will enable persons skilled in the art toconstruct my imimproved six-wheeled truck.

ln the annexed drawings, six wheels are shown united in one truck., Theouter ones A are formed with ilanges on the inner edges to keep them onthe track. The two middle wheels A may be constructed without flanges.These Wheels are rigidly attached in the usualnianner to the. axles B',supported in journal-boxes of the Ordin ary construction, the

wholebeing united in a frame, C, constructed and braced, as fully setforth in the speciiication accompanying my patent of June 18, A.- l).1,867, and as shown in the drawings. The,

Journal-'boxes are pressed down by a series of springs, l), placed abovethe frame, and which are united by the levers D', being connected bystirrups, in the manner clearly shown in Fig. 3. As the boxes have freeplay between their pedestals the wheels may accommodate themselveswithin thewlimits allowedby the tension of the springs to inequalitiesin the These` trucks being l surface of the track. placed under each endof the ear the latter is attached to them by a king-bolt passing,through the plate E, which is bolted to the top ot' a beam, F, supportedby braces G Gr, connecting it with the swinging beams H, which areplaced on each side ot', and equidistant from, the middle axle, andextend through and project beyond the frame C. The

lateral mot-ion ot' the caris controlled Within` limits iixed by theshoulders at 1I', which are' made to bear against the. frame, being proitccted'by india-rubber orother springs to mitigate the shock which wouldotherwise be occasioned by the swinging ot the car from side to side.The swinging `beams H are placed between the transvers beams I I, the

latter being rigidly attached to the frame i frames are connectedrigidly by means of the v beams (l, at cach end; also, by the transverse`beams l. i

What I claim as my invention, anddesire to secure by Letters'latent,fis-

1, Se supporting the end of a ear upon a. six-wheeled truck that theweight shall be` equally distributed upon all# the wheels by resting itupon a support over, but not upon,

l the middle axle, said support being sustained by springs placed onenoh sido of, and equidistnnt from, the middle axle, and the Wholeweight; being transferred to the axles through a rigid frame,substantially `in the manner set forth.

2. In combina-tion with the beam F, the braces Gqand swinging beams H,placed ou each sido of the middle axle, and supporting upontheir outerends the side bearing-blocks N, so as to balance the weight of the endof the car over the middl axlersubs tanti-ally in the manner set forth.Y

In tostimony whereof I have signed my name to this specification in thepresence of two subscribing witnesses.

f U. F. ALLEN. Witnesses: v

Riom). J. MOORE, W. F.- WHITEuor

